Kemi Badenoch is set to launch a scathing attack on Westminster, accusing it of descending into "pantomime" at a time when "Britain needs seriousness" regarding the future of its armed forces.
In a speech on Tuesday, the Tory leader will claim Sir Keir Starmer, attending his final Nato summit as Prime Minister, is a "powerless" leader whose defence investment plan (Dip) is "not fit for purpose".